having basic situational awareness should allow you to avoid most fights or at least give you enough time to prepare for one if it's pretty much inevitable.

everything can be a weapon and if it wont be an effective weapon use it to distract whoever you're fighting.....drinking something? throw it in their face and strike when their distracted.....or leave, shit like that.

know the law try not to break it unless the consequences of not doing anything is worse than the legal reprocussions.